Ansible roles separate the logical function with a physical host to fit your network better. For example, you can construct roles such as spines, leafs, core, as well as Cisco, Juniper, and Arista. The same physical host can belong to multiple roles; for example, a device can belong to both Juniper and the core. This flexibility allows us to perform operations, such as upgrade all Juniper devices, without worrying about the device's location in the layer of the network.
Ansible roles can automatically load certain variables, tasks, and handlers based on a known file infrastructure. The key is that this is a known file structure that we automatically include. In fact, you can think of roles as pre-made include statements by Ansible. ...
